In an age when you can be sacked for an inflammatory Twitter post, people are asked to sign ‘morality clauses’, and media ownership remains in the hands of a select few, it seems that the powerful are increasingly able to redraw the boundaries of free speech. Guardian Australia columnist and Trigger Warnings author Jeff Sparrow argues that in an economy in which our labour is the prime commodity, employers and the powers that be are more able than ever to monitor individual expression, making free speech a crucial industrial issue.